Harrow.



No. 630,656. Patented Aug. 8, I899. C. CHRISTIANSON.

HARROW.

(Application filed Feb. 26, 1898,,

(No Model.) 2 Sheets-Sheet 2.

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CHRIS'lIAN cumsrIANsoN, on GREENFIELD, SOUTH DAKOTA.

HARROW.

SPECIFICATION forming part of Letters I'atent No. 630,656, dated Augusts, 1899. Application filed February 26, 1898. serial No. 671,805. (Nomodel.)

To all w/wm it may concern.-

Be it known that I, CHRISTIAN CHRISTIAN- SON, a citizen of the UnitedStates, residing at Greenfield, in the county of Clay and State of SouthDakota, have invented certain new and useful Improvementsin'Harrows; andI do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to a novel harrow attachment for plows, and hasfor its object the production of a simple, durable, and efficient harrowwhich may be readily attached to plows of any ordinary construction andwhich when so attached will eifectually harrow and pulverize the earthas it is turned up into a furrow by the plow.

The invention consists in providingalight metallic frame having a harrowof any suitable form 'mounted thereon or connected thereto and insecuring the harrow-frame to the plow in a manner to permit the entireattachment to be elevated out of contact with the ground by a lever uponthe plow-handle, which when released will permit the attachment to dropback to bring the harrow into operative relation with the plow and causethe simultaneous plowing'and harrowing of the ground without thenecessity of going over the field twice, as in the ordinary use ofagricultural implements.

Referring to the drawings, Figure 1 is a perspective view of a plowprovided with my attachment. Fig. 2 isa plan view, on a somewhatenlarged scale, of the harrow attachment detached. Fig. 3 is a sideelevation thereof. Fig. 4 is a detail view of the pulverizer-shaft andits adjusting mechanism. Fig. 5 is a detail view of the supporting-arm,and Fig. 6 is a similar View of one of the clamps.

Referring to the nu merals on the drawings, 1 indicates a plow of anysuitable or ordinary construction, composed, as usual, of a share 2,apair of upwardlyand rearwardly inclined handles 3 and 4, and a beam 5.The form of plow illustrated is simply selected for the purpose ofshowing the mode of application of my invention and may be varied tosuit the conditions under which it is desired to employ the device.

6 indicates what I will term the swing ing supporting-beam, providedwith a hook 7 at one end, designed to engagea similar hook 8 upon aclamping-plate 9, bent inrectangular form and provided with slotslO and11, through which extend the threaded extremities of an angularclamping-bolt 12, provided with internal nuts. This clamp is designed tobe secured upon the left-hand handle of the plow and is securely clampedthereon by screwing down the nuts upon the ends of the clamping-bolt.The outer extremity of the arms 6 is provided with a rectangular frame14, bolted to the extremity of the arm and additionally secured by meansof a pair of diagonal braces 15, terminally bolted or pivoted at theiropposite extremities to the frame and arm.

16 indicates a swiveled bar rotatably mounted in the swiveled frame andupon which is mounted the harrow-frame 16, composed of a light metalstrip 17, doubled upon itself to form an eye 18 in front of the swiveledframe andenga'ging a swiveled rod, and then extended upwardly and bentinto a horizontal plane, the two side branches of the strip bein g bentrarwardly in divergent relation and downwardly at a suitable point inthe rear of the swiveled frame, as illustrated. The

branches of the strip areconnec-ted by a be termed the pulverizer-framel9,in which 'is rotatably mounted a transverse pulverizershaft 20',"provided with a series of pulverizing-rollersfll, journaled inroller-bearing brackets 22, extending rearwardly from the shaft.

Any suitable means may be provided for permitting the shaft to elevatethe rollers from contact with the ground; but I prefer to employa lever23 upon one end of the shaft, having a spring-latch 24, designed toengage a toothed segment 25, carried atone side of the pulverizer-frame.

26 indicates a harrow composed of the side bars 27, pivotally connectedat their front ends to the pulverizer-frameand connected by pivoted orstationary transverse toothbars 28, provided with depending teeth 29 anddesigned to be adjusted to regulate the angle of the teeth by means of atooth-baradjusting lever 29, provided with a springlatch 30, engaging atoothed segment 31, the tooth-bar-adjusting lever being connected to aconnecting-rod 32, pivotally connected to upwardly-extending arms 33,secured to the tooth-bars.

34 indicates a stay-rod pivotally connected to the arms 6 and providedwith a clamp at its forward extremity, designed to be secured to thebeam of the plow adjacent to the share. The stay-rod is adjustable uponthe arm 6 by means of a series of apertures therein designed to receivea pivot-pin 37.

38 indicates a bail of any suitable form connected to the harrow andpulverizer-frame and having a flexible piece 39 connected at itsopposite extremity to a lever 40, carried upon the right-hand handle ofthe plow and designed to enable the plowman to raise or lower the entireattachment when not in use.

From the foregoing it will be observed that I have produced a simple,durable, and eificient harrow attachment for plows supported by aswinging arm and provided with harrowteeth and pulverizer-rollers, whichmay be thrown into or out of operation, as desired, the entireattachment being so mounted upon the supporting part by means of thehooks 7 and S that it is capable of the necessary forward and backwardadjustment as well as the vertical undulations necessary to accommodatethe device to the uneven surface of the ground; but, while the presentembodiment of the invention seems to be preferable, I do not desire tolimit myself to the structural details set out, but reserve the right tochange, vary, or modify them at will within the scope of the protectionprayed.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is"- 1. The combination with a plow, ofalaterally-extending swinging arm secured at one end to the plow, aframecarried byand pivotally mounted on the opposite end of the arm, and abarrow-frame pivotally connected to the pivoted frame on a horizontaltransverse axis, substantially as specified. I

2. In a harrow attachment of the character described, the combinationwith a supporting-arm provided with an attaching-clamp at one end, of apivoted swivel-frame at its opposite end journaled on a longitudinalaxis, a

harrow-franie pivotally connected to the latter on a transverse axis,and independentlyadjustable pulverizing-rollers mounted in the frame,substantially as specified.

8. The combination with a swinging supporting-arm, of a swivel-framesecured there to in rear and to one side of the plow, a barrow-framecarried by the swivel-frame and journaled on a horizontal axis, atransverse pulverizing-shaft mounted in the frame and provided withroller brackets and rollers therein, means for turning thepulverizershaft and raising and lowering the rollers, and a harrowconnected pivotally to the barrow-frame, substantially as specified.

4. The combination with a swinging arm and a swivel frame carriedthereby, of a swivel-rod mountedin the frame, a harro w supported by therod and susceptible of free lateral vibration, a pulverizer frameconstituting the rear end of the harrow-frame, a pulverizer-shaftjournaled in the pulverizerframe, brackets extending rearwardly from theshaft and rollers journaled insaidbrackets, a lever connected to thepulverizer-shaft designed to effect the adjustinent ofthepulverizer-rollers, a harrow connected to the pulverizer-frame andprovided with adjust able tooth-bars longitudinally j ournaled, a bailconnected to the barrow-frame, a lever designed to be carried by a plow,and a flexible piece intermediate of the bail and lever, whereby thelatter may be actuated to raise the entire device out of contact withthe ground, substantially as specified.

5. The combination with a p low, of a laterally-extended arm ,connectedpivotally to one of the plow-handles bya swivelclamp, a barrow-frameconnected tothe opposite extremity of the arm, and susceptible ofvibration,pulverizing-rollers mountedin the frame, a harrow connected tosaidfraine, a le v er mounted upon one of the plow-handles aiidoperatively connectedwith the harrow -frame, and a stay-rod adjustablyand pivotally connected to the arm, and provided with a clamp at theopposite end designed to be secured to the plow-beam, substantially asspecified.

In testimony whereof I afiix my signature in presence of two witnesses.

CHRISTIAN CI-IRISTIANSO N.

Witnesses: I

O. H. CHRISTIANSON, HANS PETER HANSON.

